Crashworthiness analysis and multi-objective optimization of expanding circular tube energy absorbers with cylindrical anti-clamber under eccentric loading for subway vehicles

Guan, Weiyuan; Gao, Guangjun; Yu, Yiqiang; Zhuo, Tianyu

doi:10.1007/s00158-019-02427-z

Cited by 21 publications

(2 citation statements)

References 32 publications

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“…Figure 13 shows the simulation results of F I G U R E 1 0 Load-displacement curves of experimental results and numerical results of H0 different induced hole number (d = 4 mm, h = 30 mm). The deformation modes of Al/CFRP tubes with different number (2,3,4,5,6) of holes are shown in Figure 13 (A)-(E). The corresponding load-displacement curves and crashworthiness indicators calculated from these curves are shown in Figure 13(F) and Figure 13(G), respectively.…”

Section: The Influence Of Hole Number (N) On Crashworthiness Of the Al/cfrp Tubesmentioning

confidence: 99%

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Crashworthiness analysis and multi‐objective optimization of Al/CFRP tubes with induced holes

Wang

et al. 2021

Polymer Composites

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Reasonable design of induced holes on thin-walled structure is beneficial to enhance the crashworthy performance of the structure. In order to improve the crashworthiness of Al/carbon fiber-reinforced polymer (CFRP) tube, the effect of induced holes on the Al/CFRP thin-walled structure was studied, and the Al/CFRP tube configuration with better overall crashworthiness was obtained by multi-objective optimization design method. First, the quasi-static axial compression tests were carried out on the intact Al/CFRP tube and the Al/CFRP tube with induced holes, and a numerical model validated by the experiment was established. Second, the parameters of the induced hole were studied numerically to explore the influence of the induced holes on the crashworthiness of the Al/CFRP tube. It was found that the diameter and number of the induced hole had a great influence on the crashworthiness and energy absorption (EA) capacity. Finally, the multi-objective optimization was performed to optimize the parameters of the induced holes by integrating the Kriging model technique and the nondominated sorting genetic algorithm (NSGA-II). Compared the optimal design with the intact Al/CFRP tube, the first peak load is reduced by 24.32% and the specific EA is slightly improved by 0.68%.

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Section: The Influence Of Hole Number (N) On Crashworthiness Of the Al/cfrp Tubesmentioning

confidence: 99%

“…In recent decades, thin-walled structures are widely used as energy-absorbing devices in automobiles, [1] subway vehicles, [2] and aircrafts [3] to improve crashworthiness. Carbon fiber-reinforced polymer (CFRP) tubes with higher SEA have been extensively studied, compared to the conventional metallic structures.…”

Section: Introductionmentioning

confidence: 99%

Crashworthiness analysis and multi‐objective optimization of Al/CFRP tubes with induced holes

Wang

et al. 2021

Polymer Composites

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Crushing analysis and multiobjective crashworthiness optimization of combined shrinking circular tubes under impact loading

Guan

Gao

2021

Struct Multidisc Optim

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Crashworthiness analysis and multiobjective robust optimization of two-stage variable thickness expansion tube under impact loading

Jin

Guan

2022

Struct Multidisc Optim

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Crashworthiness analysis and multi-objective optimization of expanding circular tube energy absorbers with cylindrical anti-clamber under eccentric loading for subway vehicles

Cited by 21 publications

References 32 publications

Crashworthiness analysis and multi‐objective optimization of Al/CFRP tubes with induced holes

Crashworthiness analysis and multi‐objective optimization of Al/CFRP tubes with induced holes

Crushing analysis and multiobjective crashworthiness optimization of combined shrinking circular tubes under impact loading

Crashworthiness analysis and multiobjective robust optimization of two-stage variable thickness expansion tube under impact loading

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